To investigate the chemical compositions, sources, and aging processes of submicron particles (PM1), a comprehensive field campaign was conducted in Guangzhou urban area China during autumn (October–November) 2018. The average mass concentration PM1 35.6 ± 20.8 µg m?3, which mainly contributed by organic aerosols (OA, 42%), then followed sulfate (25%) inorganic nitrate (11%). found to be main d...

Lead is a toxic factor in jarosite residue, and it important to study its release behavior from simulated lead residue (LSJ) predict the stability of impact on environment. This investigated ion behavior, leaching toxicity, stability, migration LSJ during freeze–thaw cycling with thiourea (T-FTC). The lead, iron, sulfate radicals via T-FTC was influenced by several factors. Under specific condi...

Zero-valent iron [Fe(0)]-biochar composites, namely, Fe(0)-included biochar and biochar-coated Fe(0), were synthesized their catalytic performance in the activation of persulfate for phenol degradation water was evaluated. In presence Fe(0)-biochar biochar-persulfate Fe(0)-persulfate systems showed higher removal than a system by 11.6% 20.7%, respectively. The difference between Fe(0) because h...

The mineralization of nitrobenzene was executed using an innovative method, wherein Ag/Cu2O semiconductors stimulated by visible light irradiation were supported with persulfate anions. Batch-wise experiments performed for the evaluation effects silver metal contents impregnated, concentrations and dosages on removal efficiency. physicochemical properties fresh reacted illustrated X-ray diffrac...

In the present work, degradation of three estrogens (17?-estradiol (E2), estrone (E1) and 17?-ethinylestradiol (EE2)) was investigated under photoactivation hydrogen peroxide persulfate. Lab-scale irradiation experiments showed that both UVA UVB radiations are able to photoactivate oxidant precursors, although is more efficient generate radicals therefore degrade targets. The efficiency precurs...

One of the latest innovations in textile waste treatment is advanced oxidation processes (AOPs) methods using an oxidizing agent capable producing sulfate radicals (SO4•). This study aims to determine activity Mn/Carbon sphere catalyst process, reduce dye content by a combination peroxymonosulfate (PMS) and as agent, optimum conditions process reducing levels water. A hydrothermal carried out s...

• Electrodeposition of CoNi alloys in a biocompatible DES. Electrochemical parameters allowed fine control catalyst film morphology. exhibited efficient catalytic mineralization antibiotics. Building sustainable future requires new, accessible, economic, and ecological methods preparing nanostructured materials used biomedical environmental applications. In this work, detailed study on the elec...

Abstract Subglacial Lake Whillans lies below around 800 m of Antarctic ice and is isolated from fresh sources photosynthetic organic matter to sustain life. The diverse microbial ecosystems within the lake underlying sediments are therefore dependent on a combination relict, overridden, marine-derived mineral-derived energy. Here, we conduct experiments replicate subglacial erosion involving bo...

The persistence of recalcitrant pollutants in water is a major health issue calling for advanced and green techniques to clean polluted waters. For instance, direct activation peroxydisulfate by visible light without any catalyst displays remarkable potential degrade water, the involved reactive species pure conditions with deionized have been elucidated recently. However, impact phosphates, wh...